Can't get gamescope to work

Framework Laptop 16 Linux
1

AMD Ryzen AI 300 with 5070

Using fedora 43
kernel 6.18.12-200.fc43.x86_64
BIOS 03.04

I followed the Framework guides for installing Nvidia propreitary drivers and steam (flatpak method). I have also installed gamescope through flatpak and am using version 3.16.20

Mesa version: 25.3.3
Steam version: 1.0.0.84
and I have: nvidia-580-119-02

I have tried every permutation of arguments to gamescope, environment variables, –expose-wayland etc and I always get the same error as seen bellow:

[2026-02-22 19:24:21] fsync: up and running.
[2026-02-22 19:24:22] chdir "/home/foamtoaster/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/common/Splitgate 2"
[2026-02-22 19:24:22] ERROR: ld.so: object '/home/foamtoaster/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
[2026-02-22 19:24:22] ERROR: ld.so: object '/home/foamtoaster/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
[2026-02-22 19:24:22] ERROR: ld.so: object '/home/foamtoaster/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  console: gamescope-brokey version 3.16.20 (gcc 15.2.0)
[2026-02-22 19:24:22] No CAP_SYS_NICE, falling back to regular-priority compute and threads.
[2026-02-22 19:24:22] Performance will be affected.
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Loading scripts from: '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts'
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Loading scripts from: '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope'
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Loading scripts from: '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/common'
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Running script file '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/common/inspect.lua' (id: 0)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Running script file '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/common/modegen.lua' (id: 1)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Running script file '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/common/util.lua' (id: 2)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Loading scripts from: '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/displays'
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Running script file '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/displays/asus.rogally.lcd.lua' (id: 3)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Running script file '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/displays/deckhd.steamdeck.deckhd-lcd.lua' (id: 4)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Running script file '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/displays/gpd.win4.lcd.lua' (id: 5)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Running script file '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/displays/lenovo.legiongo.lcd.lua' (id: 6)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Running script file '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/displays/lenovo.legiongos.lcd.lua' (id: 7)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Running script file '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/displays/onexplayer.f1.oled.lua' (id: 8)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Running script file '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/displays/valve.steamdeck.lcd.lua' (id: 9)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Running script file '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/displays/valve.steamdeck.oled.lua' (id: 10)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Running script file '/usr/lib/extensions/vulkan/gamescope/share/gamescope/scripts/00-gamescope/displays/zotac.zone.oled.lua' (id: 11)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Loading scripts from: '/etc/gamescope/scripts'
[2026-02-22 19:24:22] [gamescope-brokey] [Warn]  scriptmgr: Directory '/etc/gamescope/scripts' does not exist
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  scriptmgr: Loading scripts from: '/home/foamtoaster/.var/app/com.valvesoftware.Steam/.config/gamescope/scripts'
[2026-02-22 19:24:22] [gamescope-brokey] [Warn]  scriptmgr: Directory '/home/foamtoaster/.var/app/com.valvesoftware.Steam/.config/gamescope/scripts' does not exist
[2026-02-22 19:24:22] Game Recording - would start recording game 2918300, but recording for this game is disabled
[2026-02-22 19:24:22] Adding process 2404 for gameID 2918300
[2026-02-22 19:24:22] WARNING: discarding _NET_WM_PID 9846 as invalid for X11 window - use specialized XCB_X11_TO_PID function!
[2026-02-22 19:24:22] WARNING: discarding _NET_WM_PID 7 as invalid for X11 window - use specialized XCB_X11_TO_PID function!
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  vulkan: selecting physical device 'NVIDIA GeForce RTX 5070 Laptop GPU': queue family 2 (general queue family 0)
[2026-02-22 19:24:22] [gamescope-brokey] [Info]  vulkan: physical device supports DRM format modifiers
[2026-02-22 19:24:23] Fossilize INFO: Overriding serialization path: "/home/foamtoaster/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/shadercache/2918300/fozpipelinesv6/steamapprun_pipeline_cache".
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  wlserver: [backend/headless/backend.c:67] Creating headless backend
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  xdg_backend: Seat name: seat0
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  xdg_backend: Initted Wayland backend
[2026-02-22 19:24:23] [gamescope-brokey] [Error] vulkan: vkGetPhysicalDeviceFormatProperties2 returned zero modifiers for DRM format 0x38344241 (VkResult: 0)
[2026-02-22 19:24:23] [gamescope-brokey] [Error] vulkan: vkGetPhysicalDeviceFormatProperties2 returned zero modifiers for DRM format 0x38344258 (VkResult: 0)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan: supported DRM formats for sampling usage:
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan:   AR24 (0x34325241)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan:   XR24 (0x34325258)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan:   AB24 (0x34324241)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan:   XB24 (0x34324258)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan:   RG16 (0x36314752)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan:   NV12 (0x3231564E)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan:   AB4H (0x48344241)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan:   XB4H (0x48344258)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan:   AB30 (0x30334241)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan:   XB30 (0x30334258)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan:   AR30 (0x30335241)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  vulkan:   XR30 (0x30335258)
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  wlserver: Using explicit sync when available
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  wlserver: Running compositor on wayland display 'gamescope-0'
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  wlserver: [backend/headless/backend.c:17] Starting headless backend
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  wlserver: Successfully initialized libei for input emulation!
[2026-02-22 19:24:23] [gamescope-brokey] [Error] wlserver: [xwayland/sockets.c:64] Failed to bind socket @/tmp/.X11-unix/X0: Address already in use
[2026-02-22 19:24:23] [gamescope-brokey] [Error] wlserver: [xwayland/sockets.c:64] Failed to bind socket @/tmp/.X11-unix/X1: Address already in use
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  wlserver: [xwayland/server.c:107] Starting Xwayland on :2
[2026-02-22 19:24:23] ERROR: ld.so: object '/home/foamtoaster/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
[2026-02-22 19:24:23] Adding process 2424 for gameID 2918300
[2026-02-22 19:24:23] ERROR: ld.so: object '/home/foamtoaster/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
[2026-02-22 19:24:23] ERROR: ld.so: object '/home/foamtoaster/.var/app/com.valvesoftware.Steam/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  pipewire: stream state changed: connecting
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  pipewire: stream state changed: paused
[2026-02-22 19:24:23] [gamescope-brokey] [Info]  pipewire: stream available on node ID: 155
[2026-02-22 19:24:23] Adding process 2425 for gameID 2918300
[2026-02-22 19:24:23] (EE) failed to read Wayland events: Broken pipe
[2026-02-22 19:24:23] Game Recording - game stopped [gameid=2918300]
[2026-02-22 19:24:23] Removing process 2425 for gameID 2918300
[2026-02-22 19:24:23] Removing process 2424 for gameID 2918300
[2026-02-22 19:24:23] Removing process 2404 for gameID 2918300

I also did the drm kernel argument as per fedora docs:

sudo grubby --update-kernel=ALL --args=‘nvidia-drm.modeset=1’

Although they seem to recommend a dnf installation.

Any help on this would be greatly appreciated

2

I’m not sure how you’re trying to use gamescope, but I just add something like this to my steam launch parameters and it works fine.

LD_PRELOAD=“” gamescope --force-grab-cursor --mangoapp -w 1280 -h 800 -f -F fsr --fsr-sharpness 10 --adaptive-sync – %command%

Have you tried something similar?

3

it doesn’t matter what the params are, it can literally just be gamescope – %command%
Ive also just tried yours and it also does not work with the same error in the logs

4

I think you’ve got a problem with the link-up between Steam-in-flatpak and GameScope-in-flatpak – which is totally intentional because flatpaks are a container technology for application isolation and this is working to keep Steam and GameScope apart.

You could try reinstalling Steam and GameScope via dnf.

5

Gamescope errors happen due to X11 socket conflicts and 32-bit Steam libraries on Fedora

1 ensure no other X server or Wayland session is running that blocks /tmp/.X11-unix/X*
2 run Gamescope outside Steam to test

gamescope -w 1920 -h 1080 -- your_game_executable

3 confirm nvidia-drm.modeset=1 is applied and reboot

4 install Steam 32-bit libraries to fix ELFCLASS32 errors

sudo dnf install mesa-dri-drivers.i686 libglvnd.i686

5 use Fedora dnf NVIDIA packages instead of Flatpak for drivers to avoid library conflicts

This should fix socket and library errors

6

Ok im back after many hours of trying fixes.

I ended up installing steam and gamescope through dnf as that is what most guides and people offering help seem to do.
It worked a lot better right away, I didnt get any of the socket errors from the flatpak.

I still had to give it higher priority as per section 4.3 in this arch documentation:

But I still had the “returned zero modifiers for DRM format”.

In the end what fixed it was forcing gamescope to run on the AMD igpu by adding the flag
--prefer-vk-device 1002:1114
As per this reddit thread Reddit - The heart of the internet

You can get the random ID by running:
MESA_VK_DEVICE_SELECT=list vulkaninfo
And then choosing the AMD igpu ID

All working now, I hope this is useful for someone in future :slight_smile:

7

To fix Gamescope on Fedora with a Framework 16, avoid using Flatpak for Steam and Gamescope. Install both via dnf to prevent X11 socket and 32-bit library issues. Ensure nvidia-drm.modeset=1 is set, install 32-bit libraries, and run Gamescope outside Steam to test. If using an AMD iGPU, force it with --prefer-vk-device <AMD_ID> from vulkaninfo. This resolves most errors.

8

That’s how I did it. Guess that’s why I’m not having problems.